can any one suggest paper presentation topies for electrical engg?

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Recently we had experienced following problem All RCCB breakers (connected to the load as well as spares) connected to various UPS systems at various floors at a high rise building tripped during a power break down and upon starting up of generator.This Generator is recently inducted into the installation. Can any one explain the reason behind this tripping. Regards Viswanathan

1 Answers  

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capacitor applied voltage is 1100VDC & capacitance value is 82uF how to calculate current of capacitor.

2 Answers  

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hi friends ,iam working as genset AVR service engineer in electrical field from past 2 yrs throughout india . i plan to shift in some other job without travelling in same field because i con't travel,i dont know what i do for that so please guide me what job is suited for me,how i can serch the job please anybody helpme iam totally confused

0 Answers  

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electrical

0 Answers   BSES, Minda,

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What is the magnetic field (coil DC ) of Turbo Expander?

0 Answers   TATA,

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why neutral is neccessary?

7 Answers  

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which cable is preferred PVC OR XLPE for voltage from 220V to 11 KV with proper justification

1 Answers   BARC, Sail,

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what is infinite in infinite bus

4 Answers   GES,

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what is the difference between 5P20 class CT , PS Class CT and 5P10 class CT??

5 Answers  

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R u say ,that is there is any flux in your room.

1 Answers  

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What is ERD used in Elevators??

1 Answers   Emerson,

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